Finding the Fourth Proportional to 76,763.27, 105,931.71 and 42,771.62

Step by Step Solution

1. Step 1: Write the proportion equation
   76,763.27 : 105,931.71 = 42,771.62 : x
2. Step 2: Convert to fraction form
   76,763.27/105,931.71 = 42,771.62/x
3. Step 3: Cross multiply
   76,763.27x = 105,931.71 × 42,771.62
4. Step 4: Simplify right side
   76,763.27x = 4,530,870,316.41
5. Step 5: Solve for x
   x = 4,530,870,316.41/76,763.27
6. Step 6: Final answer
   x = 59,023.94